Improvement in automatic fans



n J. WATTS.

Auto'matic'f'an.

:510.213,266. I Patented Mar. 11,1819.

l INVENTUM;

' BY f ATTORNEYS.

- WITNESSES:

UN ITE TATES A'rnlv'r IMPROVEMENT IN AUTOMATIC FANS.

Specification forming part of Letters Patent No. 213,266, dated March 11, 1879; application iiled August 28, 1878.

To all whom it may concern:

Beit known that I, JOsIAH WATTS, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Automatic Fans, of which the following is a specification:

Figure l is a side view of my improved fan. Fig. 2 is a front view of the same. Fig. 3 is a detail side view and a sectional view of the crank-wheel. Fig. a are detail views of the adjustable fan-handle.

The object of this invention is to furnish a fan, driven by a spring and a clock-work, which shall be simple and compact in construction, so that it may be readily moved from place to place, and which may be made ornamental to any desired extent.

The invention consists in the combination of the slotted crank-arm and its clampingscrew, the connecting-rod, the pivoted bar and its tube and set-screw, the adjustable weight, and the fan with the clock-work, the coiled spring or equivalent weight, and the frame, the standard,'and the baseas hereinafter fully described.

Similar letters of reference indicate corresponding parts.

A represents thefbase of the machine, which is made suiiiciently large and heavy to give it a firm support. To the baseA is attached the lower end of the standard B, to the upper end of which is attached a frame, C. v

D is a coiled spring, one end of which is attached to the frame C. The other end of the spring D is attached to the shaft E, aroundv gear-wheel F mesh into the teeth of the small gear-wheel G, attached to the shaft H, to which shaft is also attached a large gear-wheel, I. The teeth of the gear-wheel I mesh into the teeth of the small gear-wheel J, attached to the shaft K. The shafts E H K are all pivoted to the frame C, and to the projecting end of the last one, K, is attached a crank-wheel, L.

M is the crank-arm, which is slotted longitudinally to receive the end of the shaft K and the clamping-screw N, by which the said crank-arm is clamped adjustably to the said' wheel L. To the crank-arm M is pivoted the end of the connecting-rod O, the other end of which is pivoted to the bar P. The upper part of the bar P is pivoted to an arm, Q, attached to the upper end of the frame C. To the side of the bar P is attached, or upon it is formed, a tube, R, to receive the handle S of the fan T, where it is secured in place adjustably by a set-screw, U. Upon the upper end of the bar P is formed, or to it is attached, a screw, upon which is screwed a weight, V, to balance the fan T and steady its movement, and which may be turned up or down, as may be required.

With this construction, the stroke of the fan may be lengthened and shortened by adjusting, the crank-arm M, and may be quickened or slowed by adjusting the weightV.

If desired, the, coiled spring D may bereplaced by a weight,'producing the same effect.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The combination of the slotted crank-arm M and its clamping-screw N, the connecting'- rod O, the pivoted bar P and its tube and setscrew It U, the adjustable weight V, and the fan S T with the clock-work, the coiled spring D, and the frame, the standard, and the base, C B A, substantially as herein'shown and described.

JOSIAH WATTS. Witnesses:

JAMEsT. GRAHAM, O. SEDGWICK. 

